We believe that the device's port may have slightly sagged during use due to external force or other reasons, causing misalignment and preventing proper connection of Oculink cables. We recommend that you unscrew the motherboard screws to readjust the position, and then carefully adjust the Oculink interface to ensure the cable connector is aligned flush.

Removing the screws ensures that the Oculink interface on the motherboard is aligned with our port. Once your port can connect the Oculink cable, tighten the screws.

Regarding your question about heat dissipation, please note the following: This mini PC is designed with portability as its core advantage, resulting in a compact internal space. Therefore, under high loads (such as demanding games or multitasking), its heat dissipation capacity is slightly less than that of a traditional desktop PC. This is a common characteristic of mini PCs.

To achieve better heat dissipation, we recommend the following when using it:

• Place the device on a well-ventilated desktop, avoiding placing it in a closed cabinet or where it is obstructed by clutter;

• Regularly clean the dust from the vents and fans;

• If needed, consider using it with a small cooling pad.

Based on your description, here are two common issues and their solutions:

Issue 1: Only numbers can be entered when setting a PIN code.

• Cause: The option to input letters and symbols may not be enabled by default in the PIN code settings interface.

• Solution: In the PIN code settings interface, find and check the "Include letters and symbols" checkbox to set a complex PIN code that includes letters and symbols.

Issue 2: PIN code input has no effect at startup or system interface.

• Solution: First, please try using a commonly used numeric PIN code for verification. If you still cannot unlock after multiple attempts, please note: Computers usually support both PIN codes and user passwords for verification. If you have forgotten your PIN code, you can log in to the system using your previously set system user password.

• Perform a System Restore Using the Video Guide: If you wish to restore your existing system, please refer to our video SOP specifically designed for system restore. The process is clear and intuitive.
  Video Link: https://www.youtube.com/watch?v=qvgVn5OcKAc

• Download and Install a Fresh Operating System: If you find the restore process complex, or if your system has many problems, we recommend downloading and installing a fresh E2 system, which usually provides a cleaner experience.
  Download Address: Please visit the official support page: https://www.bosgame.com/pages/download-center
  Installation Guide: You can find a detailed illustrated installation tutorial at the bottom of this page.

Method 1: Rebooting from within Windows

• On the Windows desktop, press and hold the Shift key on your keyboard.

• While holding down the Shift key, click the "Start" menu, then select the "Power" button, and click "Restart".

• After the computer restarts, you will enter a blue "Options" menu.

• Select: Troubleshoot → Advanced options → UEFI firmware settings.

• Finally, click the Restart button. The computer will directly enter the BIOS/UEFI settings interface upon the next startup.

Method 2: Entering via a key during startup

• Completely shut down the computer.

• After pressing the power button to turn it on, immediately begin rapidly and continuously pressing the Delete key (or F2, F10, or Esc key on some brands of computers).

• Continue pressing until you enter the BIOS/UEFI settings interface.